Table of Contents

1 Overview
  1.1 Scope
  1.2 Purpose
2 Normative references
3 Preliminary considerations
  3.1 Major equipment considerations
  3.2 System conditions
  3.3 Duty cycle
  3.4 Multiple segment series capacitors
  3.5 Single-phase trip/reclose considerations
  3.6 Impact on line protection
  3.7 Line protection and series capacitor protection/control
      interaction
4 Protective functions
  4.1 Protection and control philosophy
  4.2 MOV protection
  4.3 Capacitor protection
  4.4 Bypass gap protection
  4.5 Platform fault protection
  4.6 Bypass switch protection
  4.7 Discharge current-limiting reactor protection
5 Platform power and signal transmission
  5.1 Current transformer supply
  5.2 Coupling capacitor voltage transformer supply
  5.3 Optically powered supply
  5.4 Battery supply
  5.5 Power supplies specific to bypass gap firing circuits
  5.6 Platform information transmission methods
6 Control and monitoring functions
  6.1 Control actions
  6.2 Monitoring
7 Additional protection considerations
  7.1 Environmental
  7.2 Insulation
  7.3 Electromagnetic interference
  7.4 Bypass gap firing circuits
8 Testing
  8.1 Pre-energization tests
  8.2 Energization sequence tests and operation tests
  8.3 Protection functions with bank-energized verification test
  8.4 Immunity test
  8.5 Fault tests
Annex A (informative) Glossary
Annex B (informative) Low-frequency transients
Annex C (informative) Typical economic evaluation for a
        redundant protection and control unit
Annex D (informative) Example utility calculations for MOV
        protection functions
Annex E (informative) Calculation of unbalance currents for
        an H-configured externally fused seriescapacitor bank
Annex F (informative) Calculation of unbalance currents for
        an H-configured internally fused series capacitor bank
Annex G (informative) Calculation of unbalance currents for a
        fuseless series capacitor bank
Annex H (informative) Summary of suggested
        alarms/indications/control action
Annex I (informative) Actual staged fault test results
Annex J (informative) Bibliography

Abstract

Specifies the protection and modern control philosophies of series capacitor banks. The application of this protection requires a thorough understanding of the interrelationship of the power system requirements, the bank's major equipment, and the installation of the equipment.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN
Supersedes	IEEE DRAFT C37.116 : D9 2006